Q: What are the prime factors of the number 125,541,108?

 A: 2, 3, 7, 11, 45289

Why are those the prime factors of the number 125,541,108?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 125,541,108

125,541,108
Factor Arrows
262,770,554
Factor Arrows
231,385,277
Factor Arrows
310,461,759
Factor Arrows
33,487,253
Factor Arrows
7498,179
Factor Arrows
1145,289

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 11, 45289

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 11 x 45,289 = 125,541,108

This can also be written as 22 x 32 x 71 x 111 x 45,2891 = 125,541,108

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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